Re: 6702 chip

From: William Levak <wlevak_at_SDF.ORG>
Date: Mon, 21 May 2012 04:52:17 +0000 (UTC)
Message-ID: <Pine.NEB.4.64.1205210445030.22476@sdf.lonestar.org>
I assume you are refering to the fact that the pattern changes when you 
change the number.  I haven't determined exactly how to calculate the 
change, but it does not start over from the beginning, and it does not 
reset the counters.

I have so far tested all the odd numbers through 109.  Several of those 
have had only two bits changing. Also some sequences repeat after 
only twelve numbers.


On Thu, 17 May 2012, Rob Clarke wrote:

> What would really help me is wo things:
>
> Write a sequence of odd values with two bits set, like you did before only 
> this time switch the bit off for one write half way through a sequence of 1's 
> and again half way through a sequence of 0's.
>
> eg
> 00000011
> 00000011
> 00000011
> 00000001
> 00000011
> 00000011
> 00000011
> 00000011
> 00000011
>
> and
> 0000001
> 0000001
> 0000001
> 0000101
> 0000001
> 0000001
> 0000001
> 0000001
>
> Also, for writing a constant value, start with the sequences with just three 
> bits set.
>
> Cheers,
>
> Rob
>
>
>      Message was sent through the cbm-hackers mailing list
>

wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

       Message was sent through the cbm-hackers mailing list
Received on 2012-05-21 05:00:10

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